The scene now owns its renderer, so there is no need to keep a list
of existing renderers and to call Renderer::Get().

This will help us deal with shader name collision. Breaks the Windows
build for the moment, unfortunately.

We already have the convenient degrees() and radians() functions to convert
between angle formats. This commit involves a lot of refactoring here and
there and I may have missed some places where conversions were needed. But
hopefully there aren’t may such places.

The containers no longer force the user to use the ptrdiff_t type for
size information. For convenience, size() now always returns an int,
and the size_s() method offers a way to handle arrays with more than
2 billion elements. Internally, we still use ptrdiff_t, though.

Since so much code had to be changed, I took the opportunity to get
rid of capitalised accessors for classes that are lowercase.

Scene rendering logic is now better

Added InputProfile in Controller
Added ExecLuaCode

scene so that g_scene can be deprecated later.

- removed 510 CR characters
 - removed 26 trailing whitespaces
 - replaced 0 tabs with spaces
 - fixed 15 svn:eol-style properties

classes instead of Video.

in the scene where we can push and pop cameras.

currently works for images (SDL and GDI+ loaders) and sound samples.

Useage : "...[.... csg*]" equals "current mesh -CSG- the mesh in the braces".
Keywords :  CsgUnion<csgu>, CsgSubstract<csgs>, CsgAnd<csga>, CsgXor<csgx>
TODO : cleanup useless code.
TODO : Some bugs are still present, some face that disappear should not.
TODO : Correct epsilon useage (see geometry files).
TODO : Coplanar face are not handled -at all-.
TODO : Vertex count goes through the roof in case of a Xor.

on Windows if using Visual Studio; if using MinGW, try to stick to the
original main() entry point.

do not open a console at startup.